Knox County, Indiana tornadoes

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26confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: May 26, 2024, EF2. 2026 so far: 2 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in Knox County

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The record

At a glance

Total261950 to 2025
Per year0.3average since 1950
Peak monthApril7 of 26
StrongestF4Jun 2, 1990
Deaths1whole paths, see note
Injuries96whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Knox County.

Seasons

When tornadoes hit here

By month

70 Jan: 2Feb: 3Mar: 1Apr: 7May: 4Jun: 3Jul: 1Aug: 1Sep: 1Oct: 0Nov: 2Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 7 of 26 tornadoes.

By time of day

50 12 AM: 0: 0: 03 AM: 1: 2: 06 AM: 0: 0: 09 AM: 1: 2: 012 PM: 1: 1: 23 PM: 2: 0: 56 PM: 1: 2: 39 PM: 2: 1: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

40 1950: 0: 0: 0: 0: 1: 1: 2: 0: 0: 11960: 0: 0: 1: 1: 0: 0: 0: 1: 0: 01970: 0: 1: 0: 0: 0: 0: 0: 0: 0: 01980: 0: 0: 0: 0: 0: 0: 0: 0: 0: 41990: 2: 1: 0: 0: 0: 0: 2: 0: 1: 02000: 0: 0: 1: 0: 0: 0: 0: 0: 0: 12010: 0: 1: 0: 1: 0: 0: 0: 0: 0: 12020: 0: 0: 1: 0: 1: 019501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 2 preliminary reports.

By rating

EF0
7
EF1
6
EF2
10
EF3
1
EF4
2

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

F4, June 2, 1990

1 deaths, 12 injuries Strongest

F4, June 2, 1990

106 mile path Longest path

106 miles, F4

June 2, 1990, whole path Widest

900 yards, F2

February 25, 1956
Every tornado

All 26 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
May 26, 2024EF212.14 mi50 yd00
May 19, 2022EF226.85 mi300 yd00
Feb 7, 2019EF02.96 mi300 yd00
Nov 17, 2013EF28.81 mi100 yd01
Apr 19, 2011EF110.91 mi75 yd00
Mar 8, 2009EF14.44 mi100 yd01
Sep 20, 2002F213.5 mi150 yd02
Jun 29, 1998F01.2 mi80 yd00
May 28, 1996F011 mi75 yd00
Apr 19, 1996F01 mi50 yd00
Aug 3, 1991F10.5 mi50 yd00
Jun 2, 1990F25 mi50 yd01
Jun 2, 1990F4106 mi300 yd112
Apr 28, 1989F00.5 mi50 yd00
Apr 28, 1989F00.5 mi50 yd00
Jan 7, 1989F419 mi200 yd055
Jan 7, 1989F00.1 mi30 yd00
May 6, 1971F255.3 mi50 yd01
Dec 11, 1967F20.1 mi10 yd00
Apr 19, 1963F214.8 mi250 yd022
Apr 30, 1962F226.2 mi10 yd00
Feb 10, 1959F33.3 mi100 yd00
Jul 28, 1956F10.1 mi10 yd00
Feb 25, 1956F221 mi900 yd01
Nov 15, 1955F10.1 mi10 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 12, 20263 NNW BrucevilleNot yet rated
Jun 21, 20263 WNW BicknellNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.